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发明名称
CATHODE FOR DISCHARGE TUBES
摘要
申请公布号
CA424919(A)
申请公布日期
1945.01.09
申请号
CAD424919
申请日期
申请人
CANADIAN GENERAL ELECTRIC COMPANY
发明人
JOHN O. AICHER
分类号
主分类号
代理机构
代理人
主权项
地址
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